private volatile long autoIncrementStepNanos;

  /** Advances the ticker value by {@code time} in {@code timeUnit}. */
  @SuppressWarnings("GoodTime") // should accept a java.time.Duration
  @CanIgnoreReturnValue
  public FakeTicker advance(long time, TimeUnit timeUnit) {
    return advance(timeUnit.toNanos(time));
  }

  /** Advances the ticker value by {@code nanoseconds}. */

  public void testElapsed_notRunning() {
    ticker.advance(1);
    stopwatch.start();
    ticker.advance(4);
    stopwatch.stop();
    ticker.advance(9);
    assertEquals(4, stopwatch.elapsed(NANOSECONDS));
  }

  public void testElapsed_multipleSegments() {
    stopwatch.start();
    ticker.advance(9);
    stopwatch.stop();

    ticker.advance(16);

    stopwatch.start();

  public void testElapsed_notRunning() {
    ticker.advance(1);
    stopwatch.start();
    ticker.advance(4);
    stopwatch.stop();
    ticker.advance(9);
    assertEquals(4, stopwatch.elapsed(NANOSECONDS));
  }

  public void testElapsed_multipleSegments() {
    stopwatch.start();
    ticker.advance(9);
    stopwatch.stop();

    ticker.advance(16);

    stopwatch.start();

  private volatile long autoIncrementStepNanos;

  /** Advances the ticker value by {@code time} in {@code timeUnit}. */
  @SuppressWarnings("GoodTime") // should accept a java.time.Duration
  @CanIgnoreReturnValue
  public FakeTicker advance(long time, TimeUnit timeUnit) {
    return advance(timeUnit.toNanos(time));
  }

  /** Advances the ticker value by {@code nanoseconds}. */

  public void testAdvance() {
    FakeTicker ticker = new FakeTicker();
    assertEquals(0, ticker.read());
    assertSame(ticker, ticker.advance(10));
    assertEquals(10, ticker.read());
    ticker.advance(1, TimeUnit.MILLISECONDS);
    assertEquals(1000010L, ticker.read());
    ticker.advance(Duration.ofMillis(1));
    assertEquals(2000010L, ticker.read());
  }

  public void testAutoIncrementStep_returnsSameInstance() {

  public void testAdvance() {
    FakeTicker ticker = new FakeTicker();
    assertEquals(0, ticker.read());
    assertSame(ticker, ticker.advance(10));
    assertEquals(10, ticker.read());
    ticker.advance(1, TimeUnit.MILLISECONDS);
    assertEquals(1000010L, ticker.read());
    ticker.advance(Duration.ofMillis(1));
    assertEquals(2000010L, ticker.read());
  }

  public void testAutoIncrementStep_returnsSameInstance() {

      <E extends @Nullable Object> void forEach(
          GeneralSpliterator<E> spliterator, Consumer<? super E> consumer) {
        spliterator.forEachRemaining(consumer);
      }
    },
    NO_SPLIT_TRY_ADVANCE {
      @Override
      <E extends @Nullable Object> void forEach(
          GeneralSpliterator<E> spliterator, Consumer<? super E> consumer) {
        while (spliterator.tryAdvance(consumer)) {
          // do nothing

    Object three = new Object();
    Object four = new Object();
    Object five = new Object();

    map.put(one, two);
    ticker.advance(1);
    map.put(two, three);
    ticker.advance(1);
    map.put(three, four);
    assertTrue(listener.isEmpty());
    ticker.advance(1);
    map.put(four, five);
    assertNotified(listener, one, two, RemovalCause.EXPIRED);

    assertTrue(listener.isEmpty());
  }

    Object three = new Object();
    Object four = new Object();
    Object five = new Object();

    map.put(one, two);
    ticker.advance(1);
    map.put(two, three);
    ticker.advance(1);
    map.put(three, four);
    assertTrue(listener.isEmpty());
    ticker.advance(1);
    map.put(four, five);
    assertNotified(listener, one, two, RemovalCause.EXPIRED);

    assertTrue(listener.isEmpty());
  }

      }
      if (advanceSlowPointer) {
        slowPointer = slowPointer.getCause();
      }
      advanceSlowPointer = !advanceSlowPointer; // only advance every other iteration
    }
    return throwable;
  }

  /**
   * Gets a {@code Throwable} cause chain as a list. The first entry in the list will be {@code